ML20086T277
| ML20086T277 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 06/08/1990 |
| From: | CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | |
| Shared Package | |
| ML18057B451 | List: |
| References | |
| NUDOCS 9201060200 | |
| Download: ML20086T277 (45) | |
Text
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4 Page 1 Pcv, 00 4
SCOPE DOCUMENT l
REACTOR PROTECTION SYSTEM TRIP UNIT ASSEMBLY AND RPS POWER SUPPLY ASSEMBLY UPGRADE Consumers Power Company Palisades Nuclear Plant Covert, Michigan Revision 00 Issue Date:
June 8, 1990 c,;.n t c.<.0 0, :ii?
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1 Page 2
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TABLE OF CONTENTS Section-Title
-Paae No.
'l.0 Background....................................
3 2.0 References and Abbreviations..................
4 3.0 Scope of Work.................................
6 4.0 Qual i fi c at i on Requi rement s.....................
7 5.0
. Technical Requi rements.......................
9 6.0 Quality Assurance.............................
30 7.0 Cleaning, Packing, Identification and Shipping 31 8.0 Documentation.................................
34 9.0
~ Warranty..................
36 FIGURES Fiaure-
- Title Pace No.
1 Envi ronmental Test. Profile......-..............
37 2
Seismic Test Curves...........................
'38 13 RPS Cabinets Front View.......................-
39 14 Trip Unit Assembly ' Perspective................. ;-
40 5
. Trip Unit Identi fication.......................
41 6
Bi stable Trip Unit Block Diagram..............
42 7-Single RPS Ladder Logic Matrix...........
43 8
Existing Interconnection Module...............
44 9
- Existing-Trip Tester Schematic................
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1.0 BACKGROUND
- 1.I' The buyer of the equipment supplied under this specification will be Consumers Power Company (CPCo) and will be referred to as the Purchaser. The supplier of such equipment will be referred to as the Vendor.
1.2 The equipment is intended for use at Consumers Power Company's Palisades Nuclear Power generating station, a pressurized water reactor system located at Covert, Michigan.
1.3' The. equipment specified herein will directly replace equipment in the Reactor Protection System (RPS).
The RPS utilizes various input signals to determin the status of the reactor.
If any.of the monitored selected NSSS conditions deviates from a preselected operating range, the RPS initiates protective action in the form of a reactor, trip.
. 1.4 This' specification will involve the replacing of the existing RPS Power Supply Assembly and Trip Unit Assembly.
It will also involve incorporating the Trip Tester functions into the RPS cabinet.
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1.5 The RPS is a Safety Related Class 1E seismically and environmentally qualified system. The equipment to replace the items in Section 1.4 must be qualified.to the requirements specified herein.
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REFERENCES AND ABBREVIATIONS
- 2.1 ABBREVIATIONS ANS Anerican Nuclear Society ANSI American National Standards Institute a
ASME American Society of Mechanical Engineering AWG American Wire Gauge CPCo Consumers Power Company DBE Design Basis Earthquake FL Full Load-
-FCP Facility Change Package Hz Hertz or Cycles per Second IEEE Institute of Electrical and Electronic Engineers
.ICEA Insulated Cable Engineers Association ISA Instrument Society of America NEMA National Electrical Manufacturers Association NC Normally Closed NO Normally Open-NL No Load NSSS Nuclear Steam Supply System-0BE.
Operational Basis Earthquake-Psig Pounds per Square Inch Gauge RPS
. Reactor' Protection System RRS Required Respose Spectra SSE-Safe Shutdown Earthquake
UL Underwriters Laboratory UPS Uninterruptable Power-Supply
.VAC Volts, Alternating Current -
VDC.
Volts, Direct Current e
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Page 5 Rev. 00 4
2.2 REFERENCES
2.2.1 IEEE 279-1971 "IEEE Standard Criteria for Protection Systems for Nuclear Power Generating Stations."
2.2.2 IEEE 308-1978 "IEEE Standard Criteria for Class lE Power Systems for Nuclear Power Generating Stations."
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2.2.3 IEEE-323-1974 "IEEE Standard for Qualifying Class lE Equipment for Nuclear Power Generating System."
2.2.4 IEEE 344-1975 "IEEE Recommended Practices for Seismic Qualification of Class lE Equipment for Nuclear Power Generating Stations."
2.2.5 IEEE-383-1974 "IEEE Standard for Type Test of Class lE Electrical Cables, Field Splices, and Connectors *or Nuclear Power Generating Stations."
2.2.6 IEEE-384-1984 "IEEE Standard Criteria for Independence of Class lE Equipment and Circuits."
2.2.7 ANSI 45.2.2-1978 " Packaging, Shipping, Receiving, Storage, and handling of items for Nuclear Power Plants."
4 Page 6 Rev. 00 3.0 SEQEE This specification covers the design, fabrication, inspection, testing, cleaning, packing, and shipment of a replacement RPS Power Supply Assembly, Trip Unit Assembly, and incoporation of the Trip Tester functions into the RPS cabinet. The technical requirements and detailed description of the equipment to be supplied under this specification are defined in Section 5.0.
3.1 COMPLIANCE TO SPECIFICATION The supplier shall comply with all requirements of this specification and the project specification. There shall be no deviation from the requirements without prior written approval from the Purchaser.
Any conflict in the specification shall be brought to the attention of the Purchaser prior to any action by the Vendor. Approval of the Vendor's drawings, procedures, tests and inspections by the purchaser does not relieve the Vendor of the responsibility of meeting the requirements of this specification, esc o
j Page 7 Pav. 00 4.0 00ALIFICATION The equipment assemblies supplied under this specification may be qualified through analysis or by testing.
If testing is performed, one assembly for each piece of equipment shall be chosen for all type tests.
The assemblies shall be energized and subjected to the fo' lowing tests to ensure proper operation under all rated conditions.
Qualification testing shall be performed and documented in accordance with the requirements of Reference 2.2.3.
The qualification testing shall be conducted in the following sequence:
1.
Cycling of Relays 2.
Environnental Test 3.
Seismic Test 4.1 COMPONENT CYCLING Relays to be subjected to environmental and seismic testing shall be cycled to 6,000 cycles prior to the performance of the other qualification tests.
4.2 ENVIRONMENTAL REQUIREMENTS Each assembly to be qualified shall be placed in an environmental chamber and shall be qualified to the simultaneous environmental conditions of temperature and humidity as shown in Figure 1.
Functional, ' drift, and accuracy tests shall be performed before, during, and after temperature and humidity tests to assure the assembly is operating within the design limits of this specification.
All equipment supplied shall be certified to the following environmental requirements:
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'Rev. 00 NORMAL MINIMUM MAXIMUM **
Temperature 80 10 of 400F 1400F Humidity 50 10% RH 20% RH 90%RH*
- Maximum moisture content is not to exceed a dewpoint of
- 770F,
- --The equipment shall be operational to these conditions for a maximum of 8 Hours.
4.3~
SEISMIC REQUIREMENTS The equipment specified herein is Seismic Category I and shall be designed to withstand the effects of the Operational Basis Earthquake (OBE) and the Safe Shutdown Earthquake (SSE) without loss of-function, accuracy or physical integrity.
The assembly-is to be subjected to five-(5) OBE's and one (1) SSE and will be qualified in accordance with Reference 2.2.6.
Figure 2 defines the. Required Response Spectra (RRS) curves for Palisades Nuclear Plant that the RPS equipment specified herein is to meet.
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b 5.0 TECHNICAL REOUIREMENTS 5.1' GENERAL 5.1.1 Work Include 1 5.1.1.1 The Vendor shall design, fabricate and deliver the RPS equipment.specified herein that will replace existing RPS equipment-assemblies. The RPS equipment supplied under-this specifcation shall meet the requirements defined in Reference 2.2.1 and this-specification.
5.1.1.2
- The Vendor shall provide test procedures, installation drawings, detailed-installation procedures, and other pertinent
'information required for the installation of the RPS assemblies..
5.1.1.3 All equipment supplied shall be new, unused and not previously L
sold and stored.
5.1.1.4-Engineering services for_the preparation of_a Facility Change Procedure (FCP) in accordance with CPCo procedure Admin 9.03
" Facility Change".
5.1.1.5 Field labor for the installation of the RPS equipment specified herein.
1 5.1.2 Work-Not Included The:following items will be provided by CPCo or a-designated contractor and are not to be included with this specification.
h 5.1.2.1 Receiving, unloading and unpacking the RPS equipment.
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Page 10 Rev. 00 5.1.2.2 Supervision of the installation of the RPS equipment specified herein.
5.1.2.3 Technicians to perform the site Acceptance Test procedure after installation.
5.1.3 Paintina All surfaces shall be thoroughly cleaned with a solvent prior to the application of any paint or primer. The exterior surfaces of the assemblies shall have an application of a rust resistant primer coat followed by at least twa (2) coats of paint.
The color of the paint shall be specified by the Purchaser at a later date.
5.1.4 Wirina All wire and cable used in the RPS equipment supplied under this specification shall be certified to meet the vertical flame test requirements of Reference 2.2.5.
5.1.4.1 Care shall be used in the removsl of insulation from the wire so that the wire will not be cut or nicked. All wire connections to screw type terminations shall be made with Burndy Insulug type YAE crimp type ring lug connectors or equivalent.
5.1.4.2 Wiring shall be arranged in a manner that s' lows devices to be removed or serviced without unduly disturb 6. the wiring. _No wire shall be routed across the face or rear of a device in a manner which will prevent the opening of covers or obstruct access to leads, terminals, or devices.
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-5.1.4.3
'It is preferred that one external wire per terminal will be used on the. field ~ side of terminal blocks. However, CPCo procedures will allow up to 3 if properly configured.
5.1.4.4-It is preferred that no more than two wires be attached to the internalJpanel wiring side of terminal blocks.
However, CPCo procedures will allow up to 3 if properly configured, f
.5.1.4.5
-Insulated sleeving shall be provided on wires soldered-to connectors.
.5.1.4.6 All equipment wiring shall be tested by the Vendor for proper-connection and continuity by means of a low voltage continuity testing device.:
- 5.1.4.7 Wire markers shall be provided on all-wires connected to terminal strips or any other screw termination.
The wire marker shall be-imprinted with permanent ink with a number which uniquely identifies-that connection.
Split sleeve type wire markers are not acceptable.
- 5.- 2 RPS POWER SUPPLY ASSEMBLY'REPLACEMEET.
5.2.1 General 5.2.1.1
.The Vendor shall supply-a total of Four (4) f)S Power Supply
- Assemblies,as defined below, to the Purchaser.
5.2.1.2 The Vendor shall supply the Purchaser with the following quantity of-recommended spare parts:.
QII' DESCRIPTION 2
15 VDC Power Supplies 2
+ 28 VDC Power Supplies
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'4 Page 12 Rev. 00 5.2.3 Functional Descriotion 5.2.3.1-The RPS has four (4) RPS' Power Supply Assemblies, one for each protective channel A, B,-C, and D,. located in the RPS in locations'AW8, BW8, CW8, and DW8.
Figure 3 shows the location of the power supplies in the RPS.
5.2.3.2
.The RPS Power Supply Assembly shall-contain fifteen (15) individual power supplies.that are independent from each other and are-isolated from ground. Twelve (12) power supplies ( 15
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VDC)l provide the power for the Bistable Trip Units and A'uxiliary Trip Units,-located in the Trip Unit Assembly,'in the protective channel where the RPS Power Supply Assembly is
' located. As an alternative, two diode Auctioneered Power Supplies with isolated and individually fused outputs may be substituted for the twelve (12) 15 VDC power supplies.
5.2.3.3 The RPS Power Supply Assembly also contains three (3).28 VDC power ~suppiies that provide power to the appropriateLlogic
-matrix. There are six (6) logic matrices in the RPS, AB, AC, AD, BC, BD, and CD. A'28 VDC power supply from one protective channel is. diode auctioneered with a 28 VDC power supply from another channel to provide power to their common matrix (ie.1 Channel A 28 VDC power supply is auctioneered with-1 Channel D 28 VUC power supply to provide power to the AD Logic Matrix).
5.2.4 Technical Data The RPS Power Supply Assembly shall-be a form fit replacement for the existing RPS Power Supply Assembly. The RPS Power Supply Assembly is-to meet the following technical specifications:
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5.2.4.1 Input:
120 VAC 10% 0 60Hz 5%
Connector: Hubbell 7699 or equivalent 5.2.4.2 Output:
1.
12 modules each rated at +15 VDC, 750 sa. land -15 VDC, 750 ma,(minimum.
2.
3 modules each rated at +28 VDC, 1.0 A, minimum.
5.2.4.3 Protection:
Short Circuit Protection on each power supply.
5.2.4.4 Output Adjustment:
Each side of the 15 VDC dual output power supplies shall be adjustable by 5% of center voltage.
5.2.4.5 Regulation:
1.
15 VDC modules: 0.5% line, 0.5% load.
2.
+28 VDC modules: 10% NL to FL.
5.2.4.6 Ripple:
1.
15 VDC modules: 50mV %
2.
+28 VDC modules: 2V RMS.
5.2.4.7 Floating Common:
The common terminals on each power supply shall be floating with no connections to ground.
5.2.4.8 Wire Size:
The power supplies are to be wired such that the minimum wire sizes are as follows:
AC wires - 16 AWG DC wires - 22 AWG
Page 14 Rev. 00 5.2.4.9 Physical Size:
The-15 power supply modules that make up the RPS Power Supply Assembly shall be mounted in a standard 19" rack mount chassis with a height of 8.3/4" and a maximum chassis depth of 22".
The mounting configuration shall be designed for adequate ventilation and spacing between modules.
The RPS Power Supply Assembly shall have chassis slides mounted =to the side of the chassis to allow the chassis to be pulled out for maintenance.
5.2.4.10 Fuses:
The AC input to the RPS Power Supply Assembly shall be'
.i fused on both AC lines.
Each output of the power supplies a
shall be fused on the voltage side. The fuseholders shall' give a visible indication of a blown fuse.
5.2.4.11 Indicators:
Each of the 28 VDC power supplies shall have an indicator mounted-to the front panel of the iPS Power Supply-Assembly that'will light when the power supply is functioning properly.
These indicators will be labelled with the appropriate _ logic matrix (ie. AB, BC,-etc) that
-is powered. by~ the power supply.
5.2.4.12 Output Connectors:
The RPS Power Supply Assembly will need two (2) MS type connectors mounted to the rear of the chassis to interface-with the existing wiring. The connectors are as follows:
15 VDC Output Connector (J2): MS-3102A-28-21S
+28 VDC Output Connector (J3): MS-3102A-18-125 l
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Page 15 Rev. 00 1
5.2.4.13 Identification:
Each power supply module location i the RPS Power Supply Assembly shall be labelled and identified with h permanent type marking. The rear of the RPS Power Supply Assembly shall contain a label identifying its location in the cabinet (ie. AW8, BW8, CW8, or DW8).
The connectors and fuses shall contain labels on the outside of the RPS Power Supply Assembly that will provide visible identification of those components.
5.3 TRIP UNIT ASSEMBLY 5.3.1 Gengtal 5.3.1.1 The Trip Unit shown in Figure 4 consists of three parts, the Interconnection Module, the Trip Unit Bin Assembly, and the Bistable and Auxiliary Trip Units.
The modification to the Trip Unit Assembly involves replacing the existing assembly with a new replacement Trip Unit Assembly.
5.3.1.2 The Vendor shall fabricate, design, and supply a total of four (4) Trip Unit Assemblies with each assembly containing the following:
1 Bin Assembly 1
Interconnection Module 7
Bistable Trip Units 4
Auxiliary Trip Units 5.3.1.3 The Vendor shall supply the Purchaser with the following spare parts as a minimum:
6 Bistable Trip Units 4
Auxiliary Trip Units 1
Trip Unit Extender Cord i
4
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5.3.2 Functional Descriotion
.5.3.2.1 The RPS monitors a selected number of NSSS parameters essential to reactor protection.
Four measurement channels (A,B,C,D) that are ccmpletely independent and isolated Trom each other yaonitor each NSSS parameter.
The measurement channels are input to their respective RPS Channel where they are compared to predefined setpoints to determine if the reactor requires protective action in the form of a trip.
For any input parameter, two of the four input channels must indicate protective action is required before a trip occurs. Most of the measurement channels are directly input to the Trip Unit Assembly with the exception of the two power level inputs.
Figure 5 shows_the identification of the various inputs to each of the Trip Units in the Trip Unit Assembly.
5.3.2.2 The Bistable and Auxiliary Trip Units first compare the incoming signal to a predefined trip setpoint.
The Bistable and Auxiliary Trip Units each h.ve three relay contact outputs that open when their input has exceeded the setpoint.
The re tputs from each Trip Unit is arranged into logic ladder mat There are a total of six (6) logic ladder matrices designated as AB, AC, AD, BC, BD, and CD which represent all possible 2 out of 4 trip combinations for the four trip channels. When any two Trip Unit relay outputs for a particuliar parameter are opened, the RPS then generates a trip.
5.3.2.3 When only one Trip Unit's relay outputs for a particuliar parameter are opened, this is referred to as a channel trip.
l 5.3.3 Bistable Trio Unit Technical Data Figure 6 shows a basic block diagram of the Bistable Trip Unit.
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1 to 5 VDC injut signal The input signal shall be buffered to protect the circuit card from faults applied to the input of up to 50 Vdc without physical or electrical damage.
The irpat signal is then compared to two setpoint signals one for a pretrip j
alann ind-the other for a trip. The Bistable Trip Unit can operate in a number of modes as follows:
Increasino Trio A trip _or protrip occurs when the sum of the process input u
signal and the setraint is greater than or equal to zero, t
Tha input signal is a pot.itive voltage and the setpoint is
'a negative voltage.
2tCI1411!19 ltl2 A trip or pretrip occurs when the sum of the process input signal.sid the setpoint is greater than or equal to zero.
The input signal is a negative voltage and the setpoint is
- a positive voltage.
P The trip and pretrip conditions are cleared automatically when the input returns to non-trip or non pretrip
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conditions.
The:indicaters will be cleared only upon-L manual action to reset when input raturns to 'on trip or n
non-pretrip condition..
5.3.3.2 Output:
1.-
Trip output - Three (3)-double coil SPOT relays and-r ons' !!)iingle coil DPDT relay 2.
Pretrip output - One gt) Single Coil SPOT Relay.
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t Page 18 Rev. 00 1he contact outputs for each of the relays must be rated for 2.0 amps max.
The contacts shall be form c, break before make, with a maximum resistance of 30 milliohms.
The relays shall contain diode suppression for each relay i
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.3.3.3 Setooint:
1.
Variable - Continuously variable setpoint provided from an outside signal.
The buffer circuit for this setpoint shall be accurate to 12 mV with an input impedance of 10 Kilohms.
2.
Fixed - Manually adjusted within.25% resolution.
The setpoints shall be adjustable from two adjustment trim potentiometers, course and fine, accessible from the front panel that chall provide a manual adjustment to within.25% resolutien.
There will be a total of four potentiometers on the front ptnel for each Bistable, two for Trip setpoints the other two for the pretrip setpoints.
b.3.3.4 Setpoint Power:
The Trip Unit shall contain a precision 110 VDC Reference supply output for the setpoint potentiometers which will be accurate to within il mV with variations of 2700 my in the 15 VDC input power supply.
5.3.3.E Hysteresis:
The untrip hysteresis shall be adjustable over 'it range of 50 mV to 2.00 V.
Overall accuracy of the hyss;rasis value shall not exceeded 150 mV.
5.3.3.6 Accuracy:
The worst case deviation between trip point end the setpoint shall not exceed 125 mV for a period of 30 days.
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4 Page 19 RcV. 00 i
5.3.3.7 Input Signal Open Circuit:
The Trip Unit shall contain circuitry to detect an open input signal.
If the input signal is open, the Trip Unit shall automatically generate a trip.
5.3.3.8 Indicators:
The Trip Unit shall have three indicator lights that will j
be wired to the NC contacts on the Double Coil Relays.
l These indicators will light when the Trip Unit is in the trip condition, causing the Double Coil Relays to deenergize.
A pushbutton switch shall be available on the front panel to test the lights.
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5.3.3.9 Switch / Indicator; The front panel of the Trip Unit shall contain a pushbutton switch with legends for identification of the
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function of that trip unit.
The pushbutton switch shall l
have a split screen with one half to indicate a trip (backlit Red) and the other half to indicate a pretrip (backlit white). The bistable will contain a latching circuit to keep the pretrip and/or trip lights lit until I
the input returns to normal conditions and the trip unit is manual reset by the operator by pushing the switch.
1 5.3.3.10 Response Time:
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The Trip Unit shall respond to a pretrip or trip condition in less than 150 milliseconds.
5.3.3.11 Power Requirements:
The RPS Power Supply assembly provides power for the Trip Units.
The Trip Units shall be designed to operate on 115 Vdc.
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Page 20 Pw. 00 5.3.3.12 Mechanical:
The Bistable Trip Unit shall be designed to fit into the Trip Unit Bin Assembly defined later in this specification.
5.3.3.13 Operating Tests:
The following tests are to be performed by the Vendor on each Bistable Trip Unit prior to shipment.
1)
Insulation Test:
-The insulation resistance shall be measured between the signal input and chassis ground; and between the floating signal ground and chassis.
The ir,t alation resistance shall have a minimum value of one (1) megohm.
2)
Overrange Test:
An input signal of 50 VDC shall be applied to the input of the Bistable Trip Unit for 2 minutes without damage to any of the components.
The trip setpoint voltage shall be set to 4.000 VDC during this test and shall return to this value (
.5 mV)upon removal of the fault.
3)
Response Time Test:
A fast rise time step input voltage of approximately 6 VDC shall be applied to the input of the bistable Trip unit. The response time is defined as the time it takes to open the closed (NO) contact of each relay output after the step input has been applied.
This test shall show that the response time to be between 70 to 130 Milliseconds.
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Linearity Test:
l A variable input between -10 VDC and + 10 VDC shall be applied to the input of the Trip Unit.
The i
linearity is defined as the closeness to which a
-curve, representing the trip input voltage as a function of the setpoint voltage, approximates a straight line.
It shall be measured for four values of the setpoint voltage -10.
4, +4, +10 volts.
The maximum deviation between the trip point and the setpoint shall be less than 10 mV.
l' 5) i.fsteresis Test:
With the Bistable Trip Units set at 5.VDC and the hysteresis set to 1 VDC, the histable will be repeatedly tripped and untripped to ensure that the hysteresis error for this test is less than 16 mV.
This value shall be set to 100 mV (12 mV) subsequent to this test.
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Latching Circuit Test:
Vary an input signal untti the Trip Unit pretrip l
I alarm is actuated.
Return the signal to normal and verify that that the pretrip indicator light remains lit until the pushbutton is depressed.
Vary an input signal until a Trip Unit trip is indicated.
Return the signal to normal and verify that that the trip indicator light remains lit until the pushbutton is depressed.
$.3.4 Auxiliary Trio Unit Technical Data 5.3.4.1 Input:
0 VDC Trip Condition
+15 VDC - Normal Condition 5.3.4.2 Output:
1.
Trip output - Three-(3). double coil SPDT relays and one (1) Single coil DPDT relay 2.
Pretrip output - One (1) Single Coil SPDT Relay.
The contact outputs for each of the relays must be rated for 2.0 amps max.
The contacts shall be form C, break before make, with a maximum resistance of 30 milliohms.
The relays shall contain diode suppression for each relay coil..
. 5.3.4.3 Operating Bypass Input:
The Auxiliary Trip Unit shall contain an input that will allow the trip signal output to be held in the untripped state in order to bypass a valid trip condition.
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Page 34 Rev. 00 5.3.4.4 Indicators:
The Trip Unit shall have three indicator lights that will be wired to the NC contacts on the Double Coil Relays.
These indicators will light when the Trip Unit is in the trip condition, causing the Double Coil Relays to deenergize. A pushbutton switch shall be available on the front panel to test-the lights.
5.3.4.5 Switch / indicator:
The front panel of the Trip Unit shall contain a pushbutton' switch with legends _for identification of the function of that trip unit.
The pushbutton switch shall have a split screen with one half to indicate a trip (backlit Red) and the other half to indicate a pretrip (backlit white).
The bistable will contain a latching circuit to keep the pretrip and/or trip lights lit until the input returns to normal conditions and the trip unit is manual. reset by the operator by pushing the switch.
5.3.4.6 Response Time:
The Trip Unit shall respond to a pretrip or-trip condition in less than 6.5 milliseconds.
S'3.4.7 Power Requirements:
The RPS Power Supply assembly provides power for the Trip Units.. The Trip Units shall be designed to operate on 115 Vdc.
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.5.3.4.8 Mechanical:
The Auxiliary Trip Unit shall be designed to fit irto the Trip' Unit Bin Assembly defined later in this specification.
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Page 35 Ikw. 00 5.3.4.9 Operating Tests:
The following tests are to be performed by the Vendor on each Auxiliary Trip Unit prior to shipment.
1)
Insulation Test:
The insulation resistance shall be measured between the signal input and chassis grounds and between the floating signal ground and chassis.
The insulation resistance shall have a minimum value of one (1) megohm.
3)
Response Time Test:
A step input voltage of approximately 15 VDC shall be applied to the input of the Auxiliary Trip unit.
The response time is defined as the time it takes to open the closed (NO) contact of each relay output after the step input has been applied.
This test shall show that the response time to be less than 6.5 Milliseconds.
4)
Latching Circuit Test:
l Vary an input signal until the Trip Unit pretrip alarm is actuated.
Return the signal to normal and verify that that the pretrip indicator light remains lit until the pushbutton is depressed.
Vary an input I
signal until a Trip Unit trip is indicated.
Return l
the signal to normal and verify that that the trip indicator light remains lit until the pushbutton is depressed.
1 5.3.5 Interconnection Module Technical Data l
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Page 26 Rev. 00 9
5.3.5.1 The Interconnection Module attaches to the rear of the Bin assembly.
The Interconnection module contains the mating connector to the Trip Units on one side and MS type connectors on the other side which interface with other equipment in the RPS. The module contains the necessary connections to form one half of the logic ladder shown in Figure 7.
The four Interconnection modules inside the RPS are interconnected through MS connectors on the rear of the assembly.
5.3.5.2 The Interconnection Module must interface with the existing MS connectors in the RPS.
Figure 8 shows and defines the various connectors located on the present Interconnection Module that would be required on the new-Interconnection Module.
5.3.5.3 The Interconnection Module shall contain barrier terminal strips on the rear.
The input signals from the field would be terminated to these terminal strips and from the terminal strips the signals would be input to the Trip Units for processing.
5.3.5.4 Size:
Maximum size is 8 3/4"H x 18"W x 10"D
- 5.3.6 Trio Unit Bin Assembiv Technical Data F
The Trip Unit Bin Assembly is a standard 19" rackmount Nuclear Instrument Module (AEC-TID-20893) 8 3/4"H x 9 3/4"D able to accomodate 12 Bistable and/or Auxiliary Trip Units.
The front of the assemly shall be painted to specifications defined by the purchaser at a later date.
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i Page 37 Rev. 00 5.3.7 Trio Terter function Technical Data This section will describe the purpose of the Trip Tester and the functions that it must perform. These functions are to be incorporated into the RPS cabinet.
Figure 9 shows the existing schematic diagram for the Trip Tester. A possible location for the functions of the Trip Tester is on the front of the RPS Power-Supply.
I 5.3.7.1 The Trip Tester-is a testing device used for testing of the RPS. Trip Tester Functions to be incorporate into the RPS Cabinet be able to provide the followirig capabilities:
a.
Test Jacks for a DVM.
b.
Readout of a Pretrip Setpoint c.
Readout of a Trip Setpoint l
'd.
Readout of an Input Signal e.-
Ability to inject a test signal for testing the Trip Unit.
f.
Readout of the il5 VDC Power Supply for each Trip Unit.
5.3.7.2 The Trip Tester functions can be incorporated
..e any place in the RPS cabinet. The location of the Trip Tester Functions are subject to final _ approval of the Purchaser, r
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Page 28 Rev. 00 5.3.7.3 The Trip Tester Functions will consist of_the following items as a minimum:
1)
A set of test jacks for the connection of a DVM to be used to monitor and read the various items listed above.
2)
A selector switch to chose which trip unit is to be monitored.
j 3)
A second selector switch to chose which of the following parameters on the selected Trip Unit that the operator wants to monitor.
+15 VDC Power Supply Voltage j
-15 VDC Power Supply Voltage Trip Setpoint Pretrip Setpoint Input Signal 4)
A switch to activate the Trip Test Function. The-Trip Test Function involves injecting a voltage signal into the Trip Unit and adjusting the voltage to cause the Trip Unit i
to trip or untrip.
l 5)
A separate 12 VDC power supply must be mounted near.the Trip Test Functions to provide the sourcc-for the inject input test voltage.
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6)
Coarse and Fine Potentiometers to be used for adjusting
(
the input test voltage being injected into the Trip Unit.
7)
A Variable Setpoint Trip Unit switch to enable the testing of a Trip Unit with a variable setpoint.
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Page 30 Pcv. 00 l
5 l
G.0 OUALITY ASSURANCE 6.1 RIGHT OF ACCESL The Purchaser or its designated representative shall have access to the Vendor's manufacturing facilities or the Vendor's subcontractor's manufacturing facilities at all times during the fabrication, inspection, and testing of the equipment.
The Vendor :Sall make the necessary arrangements to provide access to his plant.
6.2 RESPONSIBILTY FOR INSPECTION Unless otherwise specified in the contract, purchase order, or this specification the Vendor is responsible for the performance of all inspection requirements of this specification.
The Purchaser reserves the right to witness any of the inspections and tests set forth in this specification or in additi6n to those set forth in this specfication where such inspections or tests are deemed necessary to assure equipment and services meet the requirements of this specification.
6.3 INSPECTION Production inspection shall be performed by the Vendor on every equipment specified.
This inspection shall comprise such examination and testing as will prove the workmansnip and i
reveal the omissions and errors of the produr, tion process such as functional and performance tests, tests which detect deviations from design, and tests of adjustments.
Unless '.herwise specified in this specification, production inspection shall consist of the following:
m.
4 Page 31 Rev. 00 6.3.1 Surface Examination,
Equipment shall be examined as a minimum for the following:
Workmanship, assembly and fit, mechanical safety, marking a.
and engraving, and painting.
b.
Materials, parts, and finish, c.
Treatment for prevention of corrosion.
- f.
Treatment for protection against high humidity.
l.
6.3.2 Continuity Test All equipment wiring shall be tested by the Vendor for proper connection and continuity by means of a low voltage continuity testing device.
7.0 CLEANING. INSPECTION. PACKAGING. AND SHIPPING l
The equipment defined by this specification shall conform to
" Level B" requirements of Reference 2.2.7 as indicated below:
l 7.1 CLEANING l
l Prior to packing, the equipment shall be cleaned to remove all dirt and waste material left from fabrication.
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Page 32 Rev. 00 7.2 IDENTIFICATION The boxes, crates, or packages containing the equipment specified herein shall contain the following:
3 1.
Shipping destination 2.
Shipping origin 3.
Component Name 4.
Purchaser's Purchase Order Number 5.
Package number if more than one package is involved (ie 1 of 6, etc.).
6.
Weight' of package if over 50 lbs.
7.
. Special Handling instrections, if applicable.
8.
Packing list identifying each separate item in the package.
9.
The packing list must reference the Purchaser's Purchase Order Number and list the package number.
- 10. A Certificate of Conformance for the equipment to be
- supplied, i.
17.3 SHIPPING AND STORAGE Shipping date and delivery instructions will be provided by the Purchaser at a later date.
Storage requirements shall be provided by the Vendor prior to l
shipment of the equipment.
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PrA 34 Rev, 00 e
8.0 DOCUMENTAT1@
i All documert,ation and drawings as definad below shall t,e t
forwarded to the following address:
B. D. Meredith
. Consumers Power Company Palisades Nac'.eer Plant 27786 Blue Star Memorial Highway l
Covert, Michigan 49043 9530 8.1
.DRAWINLS The folloking drawings shA11 be submitted to the Purchaser for review approval-L
?
?
Assemtsly Orawings 2.
Block Diagrams S.
Schematic Prawings' 4.
Wiring Diagrams s-
~
s 't
. All drawings su'aitted for anroval will. normally be returned.
>with4n fifteen (15) working day 1 with one of the following notations:
o Approved l '.
2.
Approved at Noted J
3.
Returned for correction-j 'jj Drawings in categories 1 and 2 authorize tha Vendor to proceed with work. One (1) Reproducible and three (3) full size copy of all final "As Built" drawings are to be provided to the Purchaser upon shipment of the equipment.
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Page 35 Rev. 00
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8.2 DOCUMENTS r
The following documents shall be submitted to the Purchaser for y
review and approval:
1.
ItiJtallation Procedures 2.
Interface Specifications 4
3.
Technical Manual Inserts e
s All documents submitted for 3pprovt.1 will noma 11/ be returned within ten (10) working deys with one of the following
- notations:
[
1.
Approvod 2.
Approved as Noted 3.
Returned for corr ~:'on g
Documents in categories 1 and 2 authorize the Vendor to proceed with work. One copy of all final documents are tn be provided to the Purchaser upon shipment of the equipment.
- 8.2.1 Technical Manual Inserts The Purchase shall provide the Vendor with one copy of the current RPS Technical Manual.
The Vendor is to revise the l
- pages affected by this Lpgrade and provide 10 copies of the revised page inserts to the Purchaser.
The Vendor shall L
include detailed descriptions, schematics diagrams, and assembly diagrams for the new equipment. The Vendor shall include in--the manual a list of the recommended spare parts and any catalog literature available on the major components of the assemblies.
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Page 36 Paf. 00 9.0 WARRANTY j
The Vendor shall warrant that the the RPS equipment supplied under this specification shall be free of defects in material tnd workmanship, and will be functionally capable of oper6 ting in the ma'ner described in this specification for a peried of i
one (1) y.ar from the date of the commencement of servi; of each assenbly.
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t ENVIRONMENTAL CONDITONS 170 RH < 90 %
(NO HUMIDITY CONTROL) 160 NOTES:
- 1. T = TIME TO STABILIZE TEST 8
1 T!MPERATURE EXTERNAL TO TEST l
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- 2. NO CONDENSATION SHALL FORM ON
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i TRIP. UNIT IDENTIFfCAliON AND FUNCTION i
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TYPE REACTOR TRIP LEGEN0 TRIPS ON:
1 Auxiliary High Power Level Hi Power
(+) Logic Voltage by Contacts from N.I. Ct'annel 2
Auxiliary High Power Rate of Change Hi Rate
(+) Logic Voltage tr; Contacts frorn N.L Channel 3
Bistable Low Flow Reactor Coolant Lo Flow Analog Segnal Fallmg Below Fixed Setpoint Vcltage j.
4 Bistable Low Water Level Steam Generator 1 Lo Level SG 1 Analog Segnal Fathng Below Fixed Setpoint Vettage 5
Bistable Low Water Level Steam Generator 2 Lo Level SG 2 Analog Segnal Falhng Below Fixed Setpoint Voltage j
6 Bistable Low Pressure Steam Generator 1 to Press SG 1 Analog Segnal Falhng Befow Fixed Setpoint Voltage 7
- Bistable Low Pressure Steam Generator 2 to Press SG 2 Analog Segnal Reseng Above Freed Setpoen Voltage 8
Bistable Hi Pressure Pressurizer Hi Pres's. Press.
Analog Segnal Roseng Above itued Setpoet Voltage j.
j 9
Bistable Thermal MargirVLow Pressure TM/t o Press Analog Segnal Falhng Below Variable Setpoent Voltage j
10 Auxiliary Loss of Load (Turbone Trip)
Loss Load
(+) Logic Volt by Contacts from Turbane Trip Circuit 11 Auxiliary High Contaanment Buildmg Pressure CB Hi Press
(+) Logic Volt by Contacts frora Containment Press Sensor 12 Spare 4
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Trip Unit identificatio,1 and Function
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VOLTAGE SIGNAL INPUT FROM PROCESS VARIABLE g
DRIVER TRF INDICATOR I
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ENCLOSURE 2 Consumers Power Company Palisades Plant Docket 50-255 INFORMATION ON RPS MODiflCATION i
FUNCTIONAL DESCRIPTION Decefaber 26, 1991
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